Globe Control Valve

Pneumatic Balanced Labyrinth Control Valve

Balanced labyrinth control valve features a labyrinth cage with a balanced spool design. The labyrinth sleeve consists of a cylindrical disc with a plurality of coaxial surfaces distributed with a labyrinth. According to the different process parameters of the medium, the different labyrinth diameter specifications and the number of laminated layers are designed to form a cage. The cage divides the total flow passage into a number of small or even stepped throttle passages, forcing the fluid to continuously change the flow direction.

Design Standard:ANSI B16.34, API 6D, ISO 5208, DIN 3356, JIS B2071, BS 1873, GB/T 12237, GB/T 12238, EN 593, etc

Wall Thickness Standard: ANSI B16.34, BS 1873, DIN 3356, JIS B2071, EN 593, GB/T 12224, JB/T 3595, etc

Thread Standard: GB/T 12716-1991 NPT, GB/T 7306-2000 PT, GB/T 7307-2001 G, DIN 2999, JIS B0203, NF E03-005, etc

Actuator Standard: ANSI/ISA-75.25, BS EN ISO 5211, DIN EN ISO 5211, JIS B 8391, EN ISO 5211, GB/T 12222, JB/T 9093, JB/T 8861, etc


  • Product Detail

Pressure Range: PN16~PN64, ANSI 150lb~ANSI 300lb, JIS 10K

Size Range: DN20 (3/4”)~DN300 (12”)

Flanged Ends: ANSI B16.5, API 605, BS 4504, DIN 2501, JIS B2220,  EN 1092-1, GB/T 9112, GB/T 17241.6, etc

Butt-Weld BW Ends: ANSI B16.25, BS 1640, DIN 3239, JIS B2312, EN 12627, GB/T 17185, GB/T 9113, etc

Temperature Range: -30℃~260℃ (single seat structure); -196℃~570℃ (double seat structure)

Valve Material

  • Body Material WCB, WC6, WC9, CF8, CF8M, CF3, CF3M, etc
  • Trim Material 304, 316, 316L, 2205, 2507, 2Cr13, 4Cr13, F11, F22, etc
  • Spool And Seat Material 304, 316, 316L, 410, 20, 17-4PH, Monel, Hastelloy, etc
  • Cage Material CF8, CF8M, etc
  • Stem Material 304, 316, 316L, 420, 17-4PH, etc

Design Feature

  • Trim Features sleeve-guided, balanced internal structure, labyrinth butterfly cage combination
  • Body Type straight-through, angled
  • Bonnet Form standard, heat sink, low temperature
  • Flow Characteristics equal percentage, linear, quick opening

Inspection And Test

  • Leakage Rating ANSI/FCI 70-2, API 598, BS 6364, DIN EN 12266, JIS B2003, EN 12266-1, GB/T 13927, JB/T 9092, etc
  • Inspection And Testing Standard ANSI/FCI 70-2, API 598, BS EN 12266, DIN EN 12266, JIS B2003, EN 12266-1, GB/T 13927, JB/T 9092, etc

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